شيخ

1 شَاخَ ذ , (S, A, Msb, K,) aor. يَشِيخُ, (S, Msb, K,) inf. n. شَيَخٌ, with fet-h to the ى, (S, K,) and شُيُوخَةٌ (K) and شِيُوخَةٌ (TA) and شُيُوخِيَّةٌ (K) and شِيُوخِيَّةٌ (Zbd, TA) and شَيْخُوخَةٌ [the most common form, respecting which see what follows,] (S, A, Msb, K) and شَيْخُوخِيَّةٌ; (K;) and ↓ شيّخ, inf. n. تَشْيِيخٌ; (S, A, K;) and ↓ تشيّخ; (K;) He became a شَيْخ [i. e. an old, or elderly, man; &c.]: (S, A, Msb, K:) in شَيْخُوخَةٌ, the ى is originally movent [with fet-h], and afterwards made quiescent, for there is not in the language a word of the measure فَعْلُولٌ [except صَعْفُوقٌ, as is said in the S in art. حيد]: as to the similar words whose medial radical letter is و, as كَيْنُونَةٌ and قَيْدُودَةٌ and دَيْمُومَةٌ and هَيْعُوعَةٌ, these are originally كَيَّنُونَةٌ [for كَيْوَنُونَةٌ, of the measure فَيْعَلُولَةٌ,] and the like, and are contracted; for were it not so, they would be كَوْنُونَةٌ and the like. (S, L.)